P-Block Elements Group 13 to 18 (KVPY Stream SB-SX (Class 12 & 1st Year B.Sc.) Chemistry): Questions 1 - 6 of 13

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Question number: 1

» P-Block Elements Group 13 to 18 » Group 13 » Boron

Appeared in Year: 2013

MCQ▾

Question

In the structure of borax, the number of boron atoms and B-O-B units, respectively are

Choices

Choice (4) Response

a.

4 and 3

b.

5 and 4

c.

5 and 3

d.

4 and 5

Question number: 2

» P-Block Elements Group 13 to 18 » Group 13 » Boron

Appeared in Year: 2013

MCQ▾

Question

Hydrolysis of Equation gives X which on treatment with sodium carbonate produced Y. X and Y respectively are

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 3

» P-Block Elements Group 13 to 18 » Group 18 » Introduction

Appeared in Year: 2013

MCQ▾

Question

The Number of lone pair (s) on Xe in Equation an Equation are, respectively

Choices

Choice (4) Response

a.

4 and 2

b.

2 and 3

c.

4 and 1

d.

3 and 2

Question number: 4

» P-Block Elements Group 13 to 18 » Group 13 » Boron

MCQ▾

Question

The correct formula of borax is

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 5

» P-Block Elements Group 13 to 18 » Group 13 » Boron

MCQ▾

Question

The Structure of diborane ( Equation ) contains

Choices

Choice (4) Response

a.

Four Equation bonds and two Equation bond

b.

Four Equation bonds and four Equation bond

c.

Two Equation bonds and four Equation bond

d.

Two Equation bonds and two Equation bond

Question number: 6

» P-Block Elements Group 13 to 18 » Group 13 » Boron

MCQ▾

Question

The stability of + 1 oxidation state increases in the sequence

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

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